Pith Number

pith:OXOPSTTU

pith:2013:OXOPSTTUGBYEGDGZK26GO7XMWO

not attested not anchored not stored refs pending

On a question of Hof, Knill and Simon on palindromic substitutive systems

Jetro Vesti, Luca Q. Zamboni, Tero Harju

arxiv:1311.0185 v2 · 2013-11-01 · math.DS · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OXOPSTTUGBYEGDGZK26GO7XMWO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T03:07:03.471181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75dcf94e743070430cd956bc677eecb39ebc699150331ed496947a10bf8c5f22

Aliases

arxiv: 1311.0185 · arxiv_version: 1311.0185v2 · doi: 10.48550/arxiv.1311.0185 · pith_short_12: OXOPSTTUGBYE · pith_short_16: OXOPSTTUGBYEGDGZ · pith_short_8: OXOPSTTU

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OXOPSTTUGBYEGDGZK26GO7XMWO \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 75dcf94e743070430cd956bc677eecb39ebc699150331ed496947a10bf8c5f22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5e2253163f238f000fc580a6c230d9ddac71d87143a12a51f5941b914b9135f",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-11-01T13:55:04Z",
    "title_canon_sha256": "30ce85dcc2ede6113e695b79f219ac5734fc18af554b25e2fa7d5c003c0ad262"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0185",
    "kind": "arxiv",
    "version": 2
  }
}